PRESS BUTTONS on Web Application Screen USING "HAND GESTURE"

I am developing ASP.NET application wherein I have one feature to PRESS 2 BUTTONS 9one on left side and one on right side) on Web Application Screen USING “HAND GESTURE” (NOT the mouse control gesture) through the web cam of PC / Laptop (Any web cam).

Kindly help me with the source of ASP.NET / .Net Libraries for Hand gesture and also let me know the source for the same.